Bow sight



E. A. JORDAN Dec. 6, 1966 BOW SIGHT Filed April 22, 1964 INVENTOR,

9 BY mug way 15m Edgar A. Jordan United States Patent 3,289,300 BOW SIGHT Edgar A. Jordan, 2510 /z Gettle St., Klamath Falls, Greg. Filed Apr. 22, 1964, Ser. No. 361,687 9 Claims. (CI. 3346) This invention relates to a novel and useful bow sight and more specifically to a bow sight operative to give an accurate indication of the proper inclination of an arch-ers bow for a given distance between the bow and a target.

Several types of devices have been heretofore designed for the purpose of indicating to an archer the proper inclination of his bow for a given bow to target distance. However, most of these previous devices have included inherent disadvantages and therefore have not been widely accepted.

It is accordingly the main object of this invention to provide a bow sight which will be capable of rendering an accurate reading as to the proper inclination of an archers bow for a given bow to target distance.

Another object of this invention is to provide a bow sight in accordance :with the preceding object which will be readily adaptable to substantially all types of bows.

Yet another object ofthis invention is to provide a bow sight which will be capable of rendering an accurate indication of the proper inclination of a bow for a given bow to target distance when the bow is laterally inclined as well as disposed in an upstanding plane.

A further object of this invention is to provide a bow sight including means by which the inclination of the sight relative to the bow to which it is secured may be varied as desired to compensate for variations in individual archers.

A final object of this invention to be specifically enumerated herein is to provide a bow sight in accordance with the preceding objects which will conform to conventional forms of manufacture, be of simple construction and easy to use so as to provide a device that will be economically feasible, long lasting and relatively troublefree in operation.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is a side elevational view of a conventional form of how being held by an archer and with the bow sight of the instant invention operative mounted thereon;

FIGURE 2 is an enlarged fragmentary front elevational view of the portion of the bow to which the bow sight is secured;

FIGURE 3 is a side elevational view of the embodiment illustrated in FIGURE 2 with portions of the bow sight being broken away to more clearly illustrate the structural details thereof;

FIGURE 4 is a fragmentary vertical sectional view talcen substantially upon the plane indicated by the section line 4-4 of FIGURE 2;

FIGURE 5 is an enlarged fragmentary horizontal sectional view taken substantially on the plane indicated by the section line 55 of FIGURE 2.

Referring now more specifically to the drawing the numeral generally designates a conventional form of how including a bow string 14 and a handgrip portion 12. The bow sight of the instant invention is generally referred to by the reference numeral 16 and includes a mounting base generally referred to by the reference numeral 18 including a first portion 20 fixedly secured to the handg-rip portion 12 and a second sight mounting portion 22 to which the sight member 24 is secured.

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The first portion 20 includes a mounting plate 26 which is suit-ably apertured as at 28 and secured to the handgrip portion 12 by means of suitable threaded fasteners 30 received through the apertures 28 and threadedly engaged with the handgrip portion 12. A generally cylindrical member 32 is fixed to the mounting plate 26 in any convenient manner and includes a counterbore 34 on its inner end in which a diametrically enlarged portion 36 of the second portion 22 is rotatably received and held captive.

The cylindrical member 32 has a threaded bore 38 formed therein in which a setscrew 40 is threadedly engaged and it may be seen that the inner end of the setscrew 40 may be engaged with the diametrically enlarged portion 36 to retain the second portion 22 in adjusted rotated positions.

The second portion 22 has a bore 42 formed therethrough which slidably and rotatably receives the mounting shank portion 44 of the sight member 24. The shank portion 44 may be held in adjusted rotated and axially shifted positions by means of a setscrew 46 threadedly engaged in a bore 48 formed in the second portion 22 and having its innerend communicated with the bore 42.

The sight member 24 includes a transparent plastic tubular member 50 in the form of a loop and whose opposite ends are telescoped over a connecting nipple 51 snugly received in a tubular element 53 having a transverse threaded bore 55 formed therein in which the threaded end 57 of the shank portion 44 is threadedly engaged. The tubular member 50 includes a pair of diametrically opposite upstanding portions 52 and 54- which have indicia 56 and '58 formed thereon. The diametrically opposite upstanding portions 52 and 54 are of course in communication with each other at their lower ends by means of the lower portion 60 of the loop 50. In addition, it will be noted that the upper portion 62 of the loop 50 also communicates and closes the upper ends of the upstanding potrions 52 and 54.

The loop 50 is constructed of transparent material such as plastic or glass and has a quantity of a colored liquid 64 disposed therein defining common liquid levels 66 and 68 in the upstanding portions 52 and 54, respectively.

It is to be noted that diametrically opposite pairs of the indicia 56 and 58 may correspond to predetermined bow to target distances and therefore that the bow 10 may be forwardly and upwardly inclined as shOWn in FIGURE 1 of the drawings a predetermined amount corresponding to a given bow to target distance whereby the trajectory of the arrow 70 will intersect *with the center of the target.

Inasmuch as the sight member 24 comprises a closed loop 50, the how 10 may be laterally inclined to either side and still render an accurate indication of the proper inclination of the vbow 10 for a given bow to target distance.

In order to adapt the bow sight 16 to conform to various types of bows, the shank portion 44 may be axially shifted as desired. In addition, in order to compensate for variances in the aiming of individual archers, the shank portion 44 may be adjustably rotated to further compensate for individual sighting procedures.

Finally, the setscrew 40 may be loosened in order that the second portion 22 may be rotated relative to the cylindrical member 32 so as to maintain the loop 50 in a substantially vertically disposed plane even though the how 10 is slightly laterally inclined.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and O equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. In combination, a how, a bow sight secured to said bow, said sight including a first upstanding tubular member, a second upstanding tubular member defining a liquid receiving space spaced from said first tubular member, said members lying generally in the plane in which the string of the bow is drawn and of at least some vertical extent, the lower portion of said tubular members being in communication with each other, a predetermined quantity of liquid in said sight defining a common liquid level in said tubular members said first tubular member including at least one transparent portion with which said liquid level is registrable.

2. The combination of claim 1 wherein said upstanding tubular members are integrally formed.

. 3. The combination of claim 1 wherein the upper ends of said tubular members are closed and communicated with each other.

4. The combination of claim 1 wherein said transparent portion has indicia thereon space-d longitudinally thereof.

5. The combination of claim 1 wherein said tubular members are formed of a continuous length of tubing in the form of a loop.

6. The combination of claim 1 wherein said tubular members are supported from a mounting base including a first portion adapted for securement to the grip portion of a bow, and a second portion rotatable relative to said first portion, said upstanding tubular members being supported from said second portion and disposed in an upstanding plane generally paralleling the axis of rotation of said second portion relative to said first port-ion with said upstanding tubular members extending transversely of said axis.

7. The combination of claim 1 wherein said sight includes a mounting base having a first portion adapted to be secured to a bow and said base includes means supporting said upstanding members for simultaneous adjusted rotational movement about two perpendicular axes relative to said first portion.

8. The combination of claim 7 wherein said mounting base also includes means supporting said upstanding tubular members for adjustable positioning axially of one of said axes.

9. In combination, a bow, a bow sigh-t secured to said bow, said sight including at least one upstanding tubular member and means defining a liquid receiving space spaced from said tubular member said member and said means lying generally in the plane in which the string of the bow is drawn and of at least some vertical extent, the lower end portion of said tubular member being communicated with said space, a predetermined quantity of liquid in said sight defining a common liquid level in said tubular member and said space, said tubular member including at least one transparent portion with which said liquid level is registrable.

References Cited by the Examiner UNITED STATES PATENTS Hanson 3346.4

LEONARD FORMAN, Primary Examiner.

S. S. MATTHEWS, Assistant Examiner. 

9. IN COMBINATION, A BOW, A BOW SIGHT SECURED TO SAID BOW, SAID SIGHT INCLUDING AT LEAST ONE UPSTANDING TUBULAR MEMBER AND MEANS DEFINING A LIQUID RECEIVING SPACE SPACED FROM SAID TUBULAR MEMBER SAID MEMBER AND SAID MEANS LYING GENERALLY IN THE PLANE IN WHICH THE STRING OF THE BOW IS DRAWN AND OF AT LEAST SOMEVERTICAL EXTENT, THE LOWER END PORTION OF SAID TUBULAR MEMBER BEING COMMUNICATED WITH SAID SPACE, A PREDETERMINED QUANTITY OF LIQUID IN SAID SIGHT DEFINING A COMMON LIQUID LEVEL IN SAID TUBULAR MEMBER AND SAID SPACE, SAID TUBULAR MEMBER INCLUDING AT LEAST ONE TRANSPARENT PORTION WITH WHICH SAID LIQUID LEVEL IS REGISTRABLE. 